Novel composite double-stator transverse flux permanent magnet motor

Abstract

The utility model relates to a novel composite double-stator transverse flux permanent magnet motor. Comprising a central rotating shaft, a rotor, a winding and a mechanical shell, the rotor is arranged outside the central rotating shaft, the winding is arranged outside the rotor, a gap is formed between the rotor and the winding, the mechanical shell is arranged outside the winding, a plurality of inner stators penetrate through the mechanical shell and the winding, stator cores are arranged on the upper sides of every three inner stators, four permanent magnets are arranged on the stator cores, and outer stators are arranged on the upper sides of the permanent magnets. The outer stator, the four permanent magnets, the stator core and the three inner stators form a stator whole body; and the mechanical shell uniformly penetrates through the plurality of stator whole bodies. Through the composite structure of the inner stator and the outer stator, the internal space utilization rate is improved, the manufacturability, the torque density and the power factor are better improved, the motor is formed by combining the central rotating shaft, the rotor, the winding, the mechanical shell and the double stators, the whole structure is simple, and manufacturing and implementation of the machining technology are easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of drive equipment, and in particular relates to a novel composite double-stator transverse flux permanent magnet motor. Background Art

[0002] In the traditional ordinary motor structure, the teeth through which the magnetic flux passes and the slots where the armature windings are located are on the same plane, the plane where the magnetic lines of force are located is parallel to the rotation direction of the motor, and the width of the slot corresponds to the width of the tooth. If a larger current needs to flow, the required cross-sectional space will increase accordingly, and the width of the tooth will be affected. However, if the tooth width and slot width are increased at the same time, the radius of the motor will increase, resulting in a decrease in the torque density of the motor. Although the traditional transverse flux permanent magnet motor can greatly improve the torque density, it also has many fatal problems. The current transverse flux permanent magnet motor mainly has the following four structures: a transverse flux permanent magnet motor with a single-sided structure, which consists of a new outer rotor structure, a simple stator winding, a driving machine and a simple driving cylinder. A transverse flux permanent magnet motor with an E-type iron core structure, which consists of a 6-pole iron core structure, a small coil winding, and a variety of magnetic poles. A new type of transverse flux permanent magnet motor, consisting of a three-phase stator and winding, a set of rotor and coil structures. A combined stator structure transverse permanent magnet motor is composed of inner and outer stators, a permanent magnet structure, a rotor, inner and outer stator cores and a rotating shaft.

[0003] The first type of transverse flux permanent magnet motor with a single-sided structure, although it is easy to allow a larger electromagnetic load to obtain a greater torque density when in use. At the same time, the internal stator coil is simple and easy to mechanically wind. However, the outer rotor structure is not easy to connect with the driven machinery, making it more complicated in mechanical structure and use; the second type of transverse flux permanent magnet motor with an E-type iron core structure, although it is the permanent magnet motor with the least number of poles currently used, and has a simple mechanical structure and a large practical torque density, its use occasions are relatively limited, and there are major problems in manufacturing and processing technology. The third new type of transverse flux motor, a set of rotors is shared under the three-phase stator, and the magnetic poles on the rotor do not adopt a magnetic concentrating structure, which is suitable for occasions with lower power, and the mechanical structure of the motor is easy to process, but its coil installation processability is poor. It is not very universal and generally applicable. The fourth type of combined stator structure transverse permanent magnet motor has made a great optimization design in mechanical structure. It places the inner and outer stator cores parallel to the central shaft and staggers half the pole pitch. The transition core is placed in a ring shape and perpendicular to the central shaft, connected with the inner and outer stator cores to form a closed magnetic circuit. This can achieve a good magnetic concentration effect, but the air gap between the two combined stators inside is large, making it difficult to achieve a good space utilization rate. At the same time, there are also major problems in processing and manufacturing.

[0004] In summary, the existing technology has the problems of large internal stator gap, low space utilization, complex machine structure, low system control cost, small size, low torque density output when driving at low speed, low working efficiency and limited application field. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims to provide a novel composite double-stator transverse flux permanent magnet motor, which can solve the problems of the prior art that the internal stator gap is large, the space utilization rate is low, the machine structure is relatively complex, the system control cost is low, the volume is small, the torque density output is small when driving at low speed, the working efficiency is low, and the application field is limited. In order to solve the above technical problems, the utility model provides a novel composite double-stator transverse flux permanent magnet motor, which comprises a central rotating shaft, a rotor, a winding, and a mechanical housing. The rotor is located outside the central rotating shaft, the winding is located outside the rotor, there is a gap between the rotor and the winding, the mechanical housing is located outside the winding, the mechanical housing and the winding are penetrated by multiple inner stators, and each of the three inner stators has a stator core on the upper side, and there are four permanent magnets on the stator core. The upper side of the permanent magnet is an outer stator, and the outer stator, the four permanent magnets, the stator core and the three inner stators are a stator as a whole, and the mechanical housing evenly penetrates multiple stator as a whole.

[0007] Optionally, the permanent magnets relative to each other have opposite magnetic properties.

[0008] Optionally, the iron cores of the inner stator and the outer stator remain horizontal with the internal central rotating shaft.

[0009] Optionally, the stator core is annular and the central axis is placed vertically.

[0010] Optionally, the iron core of the inner stator and the iron core of the outer stator are connected to form a closed magnetic circuit.

[0011] Optionally, the iron core of the inner stator, the iron core of the outer stator and the stator iron core are connected.

[0012] By adopting the above technical solution, this case ensures the excitation characteristics by the opposite magnetic properties of the permanent magnets. The internal space utilization is improved through the composite structure of the inner stator and the outer stator, which better improves the manufacturing processability, torque density and power factor. It is composed of a central shaft, a rotor, a winding, a mechanical housing and a double stator. The whole structure is simple and easy to manufacture and realize the processing technology.

[0013] In summary, the present invention has at least one of the following beneficial effects:

[0014] The utility model adopts a novel composite double-stator winding structure, which greatly improves the torque density of the motor when it is working, and greatly improves its practical efficiency.

[0015] The utility model greatly improves the internal space utilization rate of the motor by combining the stator structure, and at the same time, the motor has a simple mechanical structure and is easy to manufacture and realize in processing technology, and also has greater engineering use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of a novel composite double-stator transverse flux permanent magnet motor of the utility model;

[0018] List of illustration symbols: 1. Mechanical housing; 2. Central rotating shaft; 3. External stator; 4. Internal stator; 5. Rotor; 6. Permanent magnet; 7. Stator core; 8. Winding. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 The utility model is further described in detail.

[0020] Embodiment 1, refer to Figure 1In this embodiment, in order to solve the problems of the existing technology, such as large internal stator gap, low space utilization, complex machine structure, low system control cost, small size, low torque density output during low-speed driving, low working efficiency, and limited application field, the utility model discloses a novel composite double-stator transverse flux permanent magnet motor, including a central rotating shaft 2, a rotor 5, a winding 8, and a mechanical housing 1. The outer side of the central rotating shaft 2 is the rotor 5, the winding 8 is on the outer side of the rotor 5, there is a gap between the rotor 5 and the winding 8, the outer side of the winding 8 is the mechanical housing 1, the mechanical housing 1 and the winding 8 are penetrated by multiple inner stators 4, and there is a stator core 7 on the upper side of every three inner stators 4, and there are four permanent magnets 6 on the stator core 7, and the upper side of the permanent magnet 6 is the outer stator 3, the outer stator 3, the four permanent magnets 6, the stator core 7 and the three inner stators 4 are a stator whole, and the mechanical housing 1 evenly penetrates multiple stator wholes. The magnets relative to the permanent magnets 6 are opposite in magnetic properties. The iron cores of the inner stator 4 and the outer stator 3 are kept horizontal with the inner central rotating shaft 2. The stator iron core 7 is annular and placed vertically with the central rotating shaft 2. The iron cores of the inner stator 4 and the outer stator 3 are connected to form a closed magnetic circuit. The iron cores of the inner stator 4, the outer stator 3 and the stator iron core 7 are connected.

[0021] Specific implementation principle: mechanical housing 1 and central shaft 2; the rotor 5 is fixed on the internal shaft 2, and a new bilateral structure is adopted to evenly fix the permanent magnet 6 on both sides of the rotor 5, and at the same time, the relative magnets are magnetically opposite to ensure the excitation characteristics. The outer stator 3 is placed in the outer ring, and the inner stator 4 is placed between the rotor 5 and the outer stator 3, and the iron cores of the inner stator 4 and the outer stator 3 are placed parallel to the internal central shaft 2, and the two are staggered by half a pole pitch. The transition stator core 7 is placed vertically with the central shaft 2 in a ring shape, and is connected to the inner stator 4 and the outer stator 3 cores to form a closed magnetic circuit. At the same time, the inner stator 4 core, the outer stator 3 core and the stator core 7 are connected, and the stator winding 8 and the outer stator 3 are placed together, and then the magnetic lines of force are guaranteed to be in the same screen. At the same time, the composite structure of the double stator improves the internal space utilization, and also better improves the manufacturing process, torque density and power factor.

[0022] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel composite double-stator transverse flux permanent magnet motor, characterized in that: The invention comprises a central rotating shaft (2), a rotor (5), a winding (8), and a mechanical housing (1); the rotor (5) is located outside the central rotating shaft (2); the winding (8) is located outside the rotor (5); a gap is formed between the rotor (5) and the winding (8); the mechanical housing (1) is located outside the winding (8); the mechanical housing (1) and the winding (8) are penetrated by a plurality of inner stators (4); a stator core (7) is provided on the upper side of each of the three inner stators (4); four permanent magnets (6) are provided on the stator core (7); the upper side of the permanent magnets (6) is an outer stator (3); the outer stator (3), the four permanent magnets (6), the stator core (7), and the three inner stators (4) form a stator whole; and the mechanical housing (1) evenly penetrates the plurality of stator wholes.

2. A novel composite dual-stator transverse flux permanent magnet motor according to claim 1, characterized in that: The permanent magnets (6) are opposite to each other in magnetic properties.

3. A novel composite dual-stator transverse flux permanent magnet motor according to claim 1, characterized in that: The iron cores of the inner stator (4) and the outer stator (3) are kept horizontal with the inner central rotating shaft (2).

4. A novel composite dual-stator transverse flux permanent magnet motor according to claim 1, characterized in that: The stator core (7) is annular and is placed vertically on the central rotating shaft (2).

5. The novel composite dual-stator transverse flux permanent magnet motor according to claim 1 is characterized in that: The iron core of the inner stator (4) and the iron core of the outer stator (3) are connected to form a closed magnetic circuit.

6. The novel composite dual-stator transverse flux permanent magnet motor according to claim 1 is characterized in that: The iron core of the inner stator (4), the iron core of the outer stator (3) and the stator iron core (7) are connected.

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